@media (min-width:368px) and (max-width:799px) {
    .nav-logo {
        display: none;
    }
    .nav-info {
        width: 100%;
    }
    .nav-menu {
        width: 100%;
    }
    .nav-contact-info {
        display: none;
    }
    nav {
        background-color: transparent;
        height: auto;
        width: 100%;
        float: left;
        position: none;
    }
    .header-background-image {
        position: relative;
    }
    .burger-nav {
        display: block;
        height: 60px;
        width: 100%;
        background: url(../images/burger.png) no-repeat center center;
        background-color: #e30613;
        cursor: pointer;
    }
    header nav ul {
        overflow: hidden;
        background-color: #e30613;
        height: 0;
    }
    header nav ul.open {
        height: auto;
    }
    header nav ul li {
        float: none;
        text-align: left;
        width: 100%;
        margin: 0;
        color: #fff;
        padding: 10px;
        border-bottom: 1px solid black;
        display: block;
        margin: 0;
        height: 40px;
    }
    .nav-menu li:hover {
        color: #ffffff;
        transform: none;
        transition-duration: none;
    }
    header nav ul li a {
        width: 100%;
    }
    .about-us-center {
        width: 90%;
    }
    .skills-center {
        width: 90%;
    }
    .portfolio-center {
        width: 90%;
    }
    .footer-center {
        width: 90%;
    }
    .footer-copyright-center {
        width: 90%;
    }
    .portfolio-holder {
        clear: both;
        margin: 0 auto;
        float: none;
        margin-bottom: 30px;
        width: 50%;
    }

    .footer-content p {
        margin-bottom: 30px;
    }
}



@media (min-width:368px) and (max-width:500px) {

    .skills-content ul {
        margin-bottom: 10px;
    }

    .skills-list {
        width: 100%;
    }

    .left-skills {
        width: 100%;
        float: none;
        text-align: center;
        margin: 0;
    }

    .right-skills {
        width: 100%;
        float: none;
        text-align: center;
        margin: 0;
    }



}



